package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/admin/dish")
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate  redisTemplate;
    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    public Result save(@RequestBody DishDTO dishDTO) {
        dishService.saveWithFlavor(dishDTO);

        // 清理对应的缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache( key);


        return Result.success();



    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
       PageResult pageResult = dishService.page(dishPageQueryDTO);
       return Result.success(pageResult);
    }

    /**
     * 菜品批量删除
     * @param ids
     * @return
     */
    @DeleteMapping
    public Result delete(@RequestParam List<Long>  ids){
        dishService.deleteBatch(ids);
        //将所有菜品缓存数据清理掉：缓存数据都是用"dish_"开头的
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品和对应的口味数据（查询回显）
     * @param id
     * @return
     */
    @GetMapping("{id}")
    public Result<DishVO> getById(@PathVariable Long id){
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品和对应口味信息
     * @param dishDTO
     * @return
     */
    @PutMapping
    public Result update(@RequestBody DishDTO dishDTO){
        dishService.updateWithFlavor(dishDTO);

        //将所有菜品缓存数据清理掉：缓存数据都是用"dish_"开头的
        cleanCache("dish_*");

        return Result.success();

    }
    /**
     * 根据分类id查询菜品
     */
    @GetMapping("/list")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }
    /**
     * 菜品起售、停售
     */
    @PostMapping("/status/{status}")
    public Result startOrStop(@PathVariable Integer status, Long id){
        dishService.startOrStop(status,id);
        //将所有菜品缓存数据清理掉：缓存数据都是用"dish_"开头的
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 统一清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern){
       Set keys = redisTemplate.keys(pattern);
       redisTemplate.delete(keys);
    }
}
